Fig. 10 looks a little startling! There is, however, no risk if the experiment is properly conducted. The requirements are: a kitchen table, a pail of water, a stout, flat stick three or four feet long on which to hang the pail, and another and slighter piece of stick. The larger stick is first laid upon the table with about one-third of its length projecting over the edge. The pail--empty--is next hung upon the projecting end of the stick. The smaller stick is then placed with one end against the inside angle of the bottom of the pail at the point nearest the table, and the other end cut away at such a length as will permit it to wedge tightly against the under side of the main stick, at which point a notch may be cut in the latter to prevent slipping. The whole bears a structural resemblance to the balanced ladle of Fig. 9. The pail may then be partly filled with water, when it should remain balanced as in Fig. 10. 11.--THE BALANCED PENCILS. This is an elaboration of the experiment described in paragraph 4. A pencil is first thrust through the centre of a cork and two forks into the sides of the cork. This will permit of the pencil being balanced horizontally, as in Fig. 11. A second pencil is balanced by the insertion of two pen-holders in positions relatively similar to those which the forks bear to the balanced object in Experiments 1, 2, and 3, and so arranged it may be balanced upon the unsupported end of the first pencil. The whole structure may be made to revolve upon the needle. [Illustration] 12.--THE LADLE AND WINE-GLASS. [Illustration] Making use again of the basting-ladle, a cork is first fixed into the hook of the handle, and into this is thrust the point of a knife or the prongs of a fork, the latter being at an angle of about 45deg. or so to the former. A glass is filled with water, and by placing the fork or knife-handle upon the edge of the glass the ladle will balance as in Fig. 12. 13.--THE BALANCED BOTTLE. [Illustration] By still another application of the basting-ladle, or a walking-stick or umbrella, a bottle may be balanced upon a slack cord. All that is necessary is to insert the hook of the ladle-handle or the handle of the stick into the neck of the bottle and support upon the cord, as shown. 14.--THE REVOLVING COIN. [Illustration] Bend up a piece of stiff wire, such as a hairpin, into the shape shown in the lower right-hand corner of Fig. 14, with a hook at one end and a clip at the other, the latter adjusted to grip a coin tightly. By hanging a fairly heavy finger-ring upon the hook as a counter-weight, the whole may be balanced with the penny upon the point of a needle, and made to revolve on it. 15.--THE REVOLVING PLATE. [Illustration]